/Engine/Source/Runtime/Engine/Classes/Components/PrimitiveComponent.h
Changes the value of bUseViewOwnerDepthPriorityGroup and ViewOwnerDepthPriorityGroup.
void SetViewOwnerDepthPriorityGroup ( bool bNewUseViewOwnerDepthPriorityGroup, ESceneDepthPriorityGroup NewViewOwnerDepthPriorityGroup )